Heel guard



FIG. 1 is an elevated perspective view of the heel guard shown by new design;

FIG. 2 is a side view of the heel guard shown by new design;

FIG. 3 is a front view of the heel guard shown by new design;

FIG. 4 is a back view of the heel guard shown by new design;

FIG. 5 is a top view of the heel guard shown by new design;

FIG. 6 is a bottom view of the heel guard shown by new design; and,

FIG. 7 is side view illustrating the heel guard used in conjunction with a shoe. 

The ornamental design for a heel guard, as shown and described. 